5 - 65-4 BEEP ADJUSTMENTBEEP AUDIOADJUSTMENTADJUSTMENT ADJUSTMENT CONDITION MEASUREMENT VALUE POINTUNIT LOCATION UNIT ADJUST1 • Operating frequency: Any• Connect an audio generator topin 25 (MAIN unit; J2) and setas:1 kHz / 550 mV• Squelch : OPEN• Volume level : 1• ReceivingRearpanelConnect an AC mil-livoltmeter with 4 Ωload to the [SP]jack.62.5 mV FRONT R60DC power supply13.2 (13.6) V / 15 AACmillivoltmeterSpeaker4 ΩSINADmeterAudiogenerator• MAIN unit• FRONT unitR60Beep leveladjustmentJ4, pin 25Audio input point1 151630 25J4+–

receiver circuits

pll circuits

power supply circuits

pll adjustment

main unit

Icom IC-F410 Service Manual

explicit definitions

PANEL DESCRIPTION

I Function display

I Programmable function keys

OPERATION

I Receiving and transmitting

D Tx code channel selection

CONNECTION AND MAINTENANCE

i supplied accessories

I Mounting the transceiver

I Optional OPC-617 installation

OPTIONAL SmarTrunk II™ OPERATION

last number redial

OPTIONS

IC-F410

IC-F410S

IC-F420

IC-F420S